WDC/Sandisk Corporation Message Board

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Technology Stocks : WDC/Sandisk Corporation

WDC 157.11

-5.4%

Nov 13 3:59 PM EST

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To: Steve 667 who wrote (15113)	9/27/2000 5:17:15 PM
From: Road Walker	Read Replies (1) of 60323

Bollinger Bands These are fixed lines drawn above and below a moving average of price and the width of the band varies with the volatility of the underlying security. Bands widen when the volatility of the security increases and contract when volatility decreases. The time period for the moving average can vary but John Bollinger recommends 10 days for short term trading, 20 days for intermediate trading and 50 days for long term trading. When prices break through a band it usually indicates that the move is strong enough to continue further and sharp moves tend to occur when bands tighten. After hitting a band and not penetrating it the moving average of price will often be the next support or resistance area. For a more detailed discussion of Bollinger Bands please see e-analytics.com

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